Climatological Report (Daily)
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CDUS46 KSEW 200826
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
126 AM PDT SAT SEP 20 2014


...................................

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         75    320 PM  82    1999  70      5       78
  MINIMUM         61   1147 PM  40    1957  52      9       50
  AVERAGE         68                        61      7       64

PRECIPITATION (IN)
  YESTERDAY        0.00          0.79 1959   0.05  -0.05     0.00
  MONTH TO DATE    0.15                      0.83  -0.68     2.17
  SINCE OCT 1     37.03                     36.82   0.21    43.41
  SINCE JAN 1     30.04                     21.42   8.62    21.57

DEGREE DAYS
 HEATING
  YESTERDAY        0                         5     -5        1
  MONTH TO DATE   13                        61    -48       13
  SINCE SEP 1     13                        61    -48       13
  SINCE JUL 1     36                       146   -110       28

 COOLING
  YESTERDAY        3                         1      2        0
  MONTH TO DATE   39                        19     20       55
  SINCE SEP 1     39                        19     20       55
  SINCE JAN 1    362                       187    175      385
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     6.3


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          1200 AM
 LOWEST     53           200 PM
 AVERAGE    69

..........................................................


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        88      1974
 MINIMUM TEMPERATURE (F)   51        40      1949


SUNRISE AND SUNSET
SEPTEMBER 20 2014.....SUNRISE   653 AM PDT   SUNSET   711 PM PDT
SEPTEMBER 21 2014.....SUNRISE   655 AM PDT   SUNSET   709 PM PDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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